Philip Andrew Knorr, M.D.
Urology Physician · Freedom, CA
Philip Andrew Knorr, M.D. is a urology physician with a practice address in Freedom, California, and NPI 1801981485, issued on Oct 3, 2006. Check the license (California G56315, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Philip Andrew Knorr
- Credential
- M.D.
- Primary taxonomy
- Urology Physician 208800000X
- License number
- G56315 CA
Self-reported in NPPES; status is on the state search - Practice location
- 160 Green Valley RD, Freedom, CA 95019
- Phone
- (831) 728-4227
- Enumerated
- Oct 3, 2006
- Record last updated
- Feb 21, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (831) 728-0410
- Medicaid ID
- 1437599032 CA
- Medicare enrollment
- Enrolled (PECOS I20080627000112); accepts Medicare assignment
- Medical or professional school
- University Of Nevada School Of Medicine, 1984
- Entity
- Type 1 · individual
Also registered at 160 Green Valley RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- William Kadell, O.D.Vision Therapy Optometrist1013150085
- Anne Kato, M.D.Ophthalmology Physician1871849984
- Helen Truong, ODOptometrist1710663406
Verify Philip Andrew Knorr in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G56315Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% more Medicare Part D claims than the average urology physician in 2024
2,233 Medicare Part D claims for 397 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 27 claims were for opioids.
Most prescribed
- Tamsulosin Hcl649 claims
- Finasteride498 claims
- Oxybutynin Chloride Er288 claims
- Imipramine Hcl199 claims
- Myrbetriq126 claims
- Ciprofloxacin Hcl53 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 95.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $86.81
4 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 9,340 providers of this specialty with any payment received $3,800.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Pajaro Valley Health Care DistrictWatsonville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
1 urology physician records list a practice address in Freedom
They are 1 of the 90 NPPES records with a practice address in Freedom, and 1,524 urology physician records in California.
Other urology physician records in California
- David Aaronson, MDOakland, CA1215053129
- Jason Abber, MDPanorama City, CA1356366926
- Marc Abboud, MDLos Alamitos, CA1265096531
- George AbdelsayedAnaheim, CA1568721843
- Garen AbediDowney, CA1285909051
- Jennifer Abidari, MDStanford, CA1811098197
- Sherif Aboseif, MDOxnard, CA1093882995
- Parwiz Abrahimi, M.D., PH.D.Los Angeles, CA1154857613
- Anthony Acquaviva, MDVallejo, CA1457439283
- Theodore Affue, M.D.El Centro, CA1386674000
Common questions
What is Philip Andrew Knorr, M.D.'s NPI number?
Philip Andrew Knorr, M.D.'s National Provider Identifier (NPI) is 1801981485, issued on Oct 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Philip Andrew Knorr, M.D. located?
The NPPES record lists a practice address at 160 Green Valley RD, Freedom, CA, 95019. Phone: (831) 728-4227. Providers update this record themselves, so call before visiting.
How can I verify Philip Andrew Knorr, M.D.'s license?
NPPES lists California license number G56315, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Philip Andrew Knorr, M.D. prescribe under Medicare Part D?
In 2024, Philip Andrew Knorr, M.D. had 2,233 Medicare Part D claims for 397 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.
What is Philip Andrew Knorr, M.D.'s MIPS final score?
The 2023 MIPS final score is 95.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.